PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The phrase alkali metals" is herein defined as the alkali family of metals located in Group IA of the periodic table, including lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs) and francium (Fr).
http://www.w3.org/ns/prov#wasQuotedFrom
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